[WIP] NFC car starter by MrStein

Hello to all!
I start a project starter car, as I had already done in the past.

The project will be long because I leave one month in England but I can start the CAD files (boards and maybe a 3d printed gear knob for the antenna).
The idea is to do something easily duplicable, easy to use and inexpensive.

the current idea:
The microprocessor will be a MSP430 or an arduino mini pro with an interrupt gestion for nfc reader (I like the LowPower).

There are a SPI connection to an optionnal external nfc shield and a SMA connector for the antenna.
A speed indication of the car with the 7th pad of the OBD2 connector.
The curent nfc shield will be connect with the UART communication.

Also note I just spoke to a BMW remote start expert and the car I chose is one of the hardest ones to interface with because of the way they implemented the electronics. Any other car up to a 7 series would be fine..

I have such bad luck.. Will trade in this 7 series and get a different car to hack on...

As you want john, I add some modification to the second board (capacitor value en package) so I would like to test them before give all the files.
After it's an open source project so use them as you want :)

This looks fantastic. I'm curious, @MrStein, ou wrote "The keys are currently in this version to avoid problems related to the anti-starter. It will be neutralized (bypassed) later on." in the first video. Did you insert the keys in the "On" state in your car before scanning your ring? Great project!

Now, I use a deported antenna to connect to the neiman (were you put the key) the immo chip.
this is not the best solution but it s difficule to emulate the immo signal so it's the easiest ;)
I had make some "how to" for connection between the neiman & the board, and how to supply. For now they are on my youtube (mrstein) but in french..
I will make another video for bypass the immo ;)

maybe if I have the time I will make a instructable for all (making the board, connection, bypass), but as you can read, my english is not realy good for translate a full text ^^"

Hey @MrStein this looks great! If I was still tech savvy like in high school I would love to do a home build! Seeing how I'm only a little tech savvy now, what's the odds of being able to buy one of these? I just got my hands on my NFC ring thanks @NFC-Ring-Team can't wait to integrate this into my day to day!